TY - GEN
T1 - Comparison of rigid registration methods in four clinical scenarios
AU - Laura, Cristina Oyarzun
AU - Plaza, Pablo Bueno
AU - Drechsler, Klaus
PY - 2013
Y1 - 2013
N2 - Deformable registration algorithms need in general an appropriate initialization of the volumes that is made by rigid registration algorithms. Very often intensity based rigid registration algorithms are used which provide a good initialization for certain deformable algorithms. However when the algorithm to be used for the deformation is based on a physical approach in which forces are applied to different points of the volume those rigid registration algorithms are not the most appropriate. In this paper we present a comparison between three rigid registration approaches (distance based, curvature based and combination) which detect the areas that are highly deformed and remove them from the calculation of the initial transformation. Its usability is analyzed in four clinical scenarios, namely: livers with large deformations due to breathing, livers before and after tumor ablation, resections and open liver surgery. The results show that the combination approach performs better than the other two in cases when a tumor has been resected.
AB - Deformable registration algorithms need in general an appropriate initialization of the volumes that is made by rigid registration algorithms. Very often intensity based rigid registration algorithms are used which provide a good initialization for certain deformable algorithms. However when the algorithm to be used for the deformation is based on a physical approach in which forces are applied to different points of the volume those rigid registration algorithms are not the most appropriate. In this paper we present a comparison between three rigid registration approaches (distance based, curvature based and combination) which detect the areas that are highly deformed and remove them from the calculation of the initial transformation. Its usability is analyzed in four clinical scenarios, namely: livers with large deformations due to breathing, livers before and after tumor ablation, resections and open liver surgery. The results show that the combination approach performs better than the other two in cases when a tumor has been resected.
UR - http://www.scopus.com/inward/record.url?scp=84893084975&partnerID=8YFLogxK
U2 - 10.1007/978-3-642-38079-2_15
DO - 10.1007/978-3-642-38079-2_15
M3 - Conference contribution
AN - SCOPUS:84893084975
SN - 9783642380785
T3 - Lecture Notes in Computer Science (including subseries Lecture Notes in Artificial Intelligence and Lecture Notes in Bioinformatics)
SP - 114
EP - 121
BT - Clinical Image-Based Procedures
PB - Springer Verlag
T2 - International Workshop on Clinical Image-Based Procedures: From Planning to Intervention, CLIP 2012 - Held in Conjunction with MICCAI 2012
Y2 - 5 October 2012 through 5 October 2012
ER -